baber/WOPTO huggingface dataset:
Patent GB-1194928-A (GB)
Title: Warning Switch Assembly Associated with Twin-Circuit Brakes
IPC: H01H35/34
Filed: 1967-10-24
Abstract: 1,194,928. Indicating brake-pressure failure. WERNER MESSMER K.G. SPEZIALPABRIK FUER AUTOZUBEHOER. 24 Oct., 1967 [4 Nov., 1966], No. 48190/67. Heading F2E. A warning switch assembly for twin circuit brakes comprises two pressure operated diphragm switches in each of which a contact plate 4 or 4a is caused by brake pressure against a return spring 5 or 5a to make with brake light contacts 7, 8 or 7a, 8a. Contacts 7, 7a are connected to the + pole of a battery, and contacts 8, 8a are connected to the brake lights 6 which are connected to the - pole, so that lights 6 go on even if only one brake is functioning. A warning signal 9, e.g. buzzer or light, is connected in a lead between the switches, and the lead is connected to contacts 10, 11 and 10a, 11 a of respective switches. A contact 12 or 12a is connected to the - pole. When only one brake fails, e.g. the right hand brake in Fig. 3, on application of the brakes, signal 9 is energized through +, 7, 4, 10, 9, 11a 4a, 12a, -. When both brakes are operated (Fig. 2) or neither is operated (Fig. 1) signal 9 is shortcircuited and thus not energized.
Patent GB-1443947-A (GB)
Title: Shackle
IPC: F16G15/02
Filed: 1972-10-19
Abstract: 1443947 Shackles W BANES 13 Dec 1973 [19 Oct 1972] 48216/72 Heading F2Q A shackle for supporting a swing comprises a pear-shaped plate 2 having two bores of different diameters lying on the longitudinal centre line of the plate, the bore having the larger diameter being located adjacent the larger end of the plate and being lined with a bearing material 3, preferably nylon. The plate 2 is mounted on a bar 1 and is located axially by adjustable collars 5. The smaller diameter bore carries a chain 4. Two such shackles may be separated by a spacer tube.
Patent GB-978411-A (GB)
Title: Improvements in or relating to the production of the sodium-24 isotope
IPC: G01N23/00
Filed: 1963-12-10
Abstract: 978,411. Purifying radio-isotopes. SIEMENS-SCHUCKERTWERKE A.G. Dec. 10, 1963 [Dec. 12,1962], No. 48805/63. Drawings to Specification. Heading G6R. Sodium-24 which has been prepared by the nuclear reaction Al<SP>27</SP>(n,α)Na<SP>24</SP> is separated from the irradiated aluminium by heating to vaporize the Na<SP>24</SP>, capturing the vapours on a metal, and then dissolving the Na<SP>24</SP> from the metal with an acid. Heating to 1000‹-1100‹C. in a stream of hydrogen or an inert gas may be carried out on a graphite boat placed in a quartz tube; the tube in lined with molybdenum, tungsten, tantalum or platinum. After cooling and removing the boat, the tube and lining are washed with dilute hydrochloric or sulphuric acid to extract Na<SP>24</SP>. A suitable apparatus is shown diagrammatically.
Patent GB-1496930-A (GB)
Title: Directionally solidified castings
IPC: C30B21/02
Filed: 1975-11-28
Abstract: 1496930 Ni based alloy INCO EUROPE Ltd 22 Nov 1976 [28 Nov 1975] 49032/75 Heading C7A A monovarient Ni-Cr.Mo eutectic alloy casting segregated with a matrix containing a fibrous phase of aligned lamillac produced by uni-directional solidification contains: Ni Balance plus impurities, which may be RE/Y, B, Zr or Mg, Ca to cleanse the material. The alloy is suitable for use as blade material for gas turbine engines.
Patent GB-1497543-A (GB)
Title: Flow of electrolyte through electrolytic cells
IPC: C25C7/00
Filed: 1974-11-13
Abstract: 1497543 Particulate electrode system PAREL SA 12 Nov 1975 [13 Nov 1974] 49184/74 Heading C7B A particulate electrode system e.g. for electrowinning comprises a chamber 3 containing a current feeder 8, and the particles (not shown) of the electrode and has an ion-permeable wall 4. A flow distributor in the base of the chamber debouches away from the ion permeable wall against a surface which deflects the fluid-flow back to this wall. In Fig. 1 channels 12, 12' and tapered portions 22, 23 achieve the flow shown. The channels may debouch at 7-90 degrees to the wall 4 with or without the tapered portions being present and may extend in one or more parallel lines across the cell base. The flow may meet the ion-permeable wall side of the cell at an ion-impermeable support portion, exemplified at 22. The feeder 8 may be recessed in back wall 6. An expansion chamber 15 and 17 arid predistributor 16, 18 may be provided below the main distributor. The cell may include a fixed (anode) electrode 24 in a chamber 26 located as shown, and may be tilted up to 40  degrees so that wall 4 overlies the particles, which may be of Cu, Ni or Co.
Patent GB-1357580-A (GB)
Title: Vacuum furnaces
IPC: F27B11/00
Filed: 1971-10-26
Abstract: 1357580 Automatic control ALLMANNA SVENSKA ELEKTRISKA A B 26 Oct 1971 [27 Oct 1970] 49570/71 Heading G3R [Also in Division F4] In an electrically heated vacuum sintering furnace, connected to a vacuum pump by a conduit, the heating of the furnace is controlled in dependence on the pressure in the furnace or the conduit, e.g. to maintain the pressure within limits. As shown, four zones of a vacuum furnace 10 are maintained at the same temperature using detectors 8a-8d, PID regulators 11, 12a-12c and regulators 7a-7d to control the power to heating elements 5a-5d in the furnace, an actual power signal being obtained from the change in resistance of the heating coils in furnace master zone. A temperature reference from detector 9 in the master zone is fed to a master regulator 11, which may limit the final temperature. The output of regulators 7a-7d, which could incorporate thyristors and PI power regulators, may be limited to a value set on regulator 21 which senses the derivative of the temperature. A pressure control throttle valve 18, between the furnace and vacuum pump 3, is controlled by motor 17 from PI vacuum regulator 16, which receives an actual pressure signal from gauge 15, and may be controlled by a pressure reference from programme 24. A signal from regulator 16, or a position sensor on valve 18, to PI regulator 19 increases the power to the heating elements, and thus the gas emission from a workpiece 4 in the furnace, until the pump is working at full capacity. Valve 18 may be replaced by an air bleed valve Fig. 2, (not shown).
Patent GB-1035570-A (GB)
Title: Improvements in or relating to sensing circuits
IPC: H03K3/315
Filed: 1964-12-07
Abstract: 1,035,570. Sensing circuits for magnetic core matrices; tunnel diode pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 7, 1964 [Dec. 31, 1963], No. 49615/64. Headings H3B and H3T. The output from a magnetic thin film memory matrix is passed to a sensing circuit including an amplifier 50, transmission line 52, and tunnel diodes 60, 62. During read-out from the matrix the tunnel diodes are both gated so that they operate in the low positive resistance regions of their characteristics, just below the peak. A positive output pulse reaching 57 causes diode 60 to switch to the high positive resistance region, the voltage rise at 68 providing a data output signal. In addition, resistors 56, 58 bias diode 62 away from its characteristic peak to prevent a subsequent negative pulse causing it to switch. Similarly, a negative output pulse reaching 57 produces an output signal at 70. The transmission line 52 has an effective length (e.g. 6 nanoseconds) less than that of the output pulse (e.g. 8 nanoseconds), so that the trailing edge of the pulse is attenuated. During a subsequent write operation the spurious pulse induced in the sense line does not switch diodes 60, 62 since they are not gated. Furthermore, after the delay time of line 52 the reflected wave substantially attenuates the spurious pulse. The impedance across terminals 51, 53 is matched to the characteristic impedance of the line. In a modified circuit, Fig. 5, auxiliary tunnel diodes 80, 82 quantize the pulses reaching diodes 60, 62. When the diodes are gated, a positive pulse at 79 switches diode 80 and the voltage across diode 60 changes by a predetermined amount to switch diode 60. Reference has been directed by the Comptroller to Specification 986,677.
Patent GB-1529305-A (GB)
Title: Method of producing metal alloy products
IPC: C22F1/043
Filed: 1974-11-15
Abstract: 1529305 Aluminium alloy ALCAN RESEARCH & DEVELOPMENT Ltd 7 Nov 1975 [15 Nov 1974] 49639/74 Heading C7A An aluminium alloy product in the form of a cast slab of thickness not more than 25mm formed from an alloy of composition The Si and intermetallic phase being essentially in the form of elongated rods present in an amount of 5-20 mol % and the product containing less than 2% by volume of primary particles. The alloy may be formed by casting to produce a growth rate in excess of 25 cms/min. and below 250 cms/min. to produce elongated Si rods of size 0À05 to 0À5 microns. The cast slab may then be subjected to at least 60 % reduction to fragment the Si rods and annealed at 250-400C.
Patent GB-1360977-A (GB)
Title: Rotary hydraulic machines
IPC: F01B1/06
Filed: 1970-10-21
Abstract: 1360977 Hydraulic reciprocating pumps and motors JOSEPH LUCAS (INDUSTRIES) Ltd 15 Oct 1971 [21 Oct 1970] 49988/70 Heading F1A A radial piston hydraulic pump or motor comprises a rotary cylinder block 14 with two axiallyspaced banks of pistons 15, 16 engaging respective eccentric rings 22, 23 pivotably mounted in the casing, the rings being inter-connected by a shaft 37 with levers 38, (39), Fig. 2 (not shown), engaging the rings to ensure equal eccentricity of the rings with respect to the cylinder block, a passage 32 through shaft 37 inter-connecting the high pressure valve plate parts of the pump or motor. In the pump shown, the ring eccentricity is controlled by pistons 33, 35 in cylinders 34, 36, Fig. 4. Cylinder 34 is supplied with a pressure inter-mediate inlet and outlet pressure by a spool valve 47 controlled by a piston 46 biased against a spring by pressure from high pressure port 27. Cylinder 36 is connected to the high pressure port and biases the rings towards minimum eccentricity. Solenoid valve 48 is operated to connect cylinder 34 to inlet pressure to de-stroke the pump, throttle 49 limiting loss of high pressure fluid. Rings 42 engage piston extensions 41 to maintain the piston slippers in contact with rings 22, 23.
Patent GB-1063699-A (GB)
Title: Apparatus for generating acoustic vibrations in flowing fluids
IPC: B01F11/02
Filed: 1963-12-19
Abstract: 1,063,699. Sonic / ultrasonic mixing and emulsification. SONIC ENGINEERING CORPORATION. Dec. 19, 1963 [Feb. 25, 1963], No. 50156/63. Headings B1C and B1V. [Also in Division G5] In apparatus for generating sonic or ultrasonic vibrations in a flowing fluid, the fluid flows in either direction through an orifice 76 and along a vibratory element (as shown, a blade 79 fixed at end 80) which is rapidly reciprocated towards and away from the orifice. The orifice may comprise interleaving plates having arcuate edges whereby the size of the orifice is adjustable by varying the engagement of the plates (see Figs. 2, 3, not shown). The plates vibrate and contribute to the acoustic vibrations of the fluid. The vibratory element may be bell-shaped (see Fig. 4 not shown); or conical and cooperating with a conical orifice, and the cone and orifice may have threads of opposite hand (see Figs. 5 and 6 not shown). Applications are homogenization and emulsification of liquids, making suspensions, and defibering of cellulosic material.
Patent GB-1484903-A (GB)
Title: Collapsible structures in the form of house frame-works cargo containers or similar building structures
IPC: B65D88/52
Filed: 1974-11-20
Abstract: 1484903 Collapsible boxes S A SWALLERT 20 Nov 1974 [21 Nov 1973] 50168/74 Heading B8P [Also in Divisions E1-E2] A collapsible cargo container comprises two structural members 1,2 interconnected by folding means 3a, 3b and 5a, 5b ; the arrangement being such that the hinges of the means 3a, 3b are disposed in a plane transverse to the plane of the hinges of the means 5a, 5b when the container is in the erected position. The container may be erected by inflatable pads and incorporate built-in stretchers, see Figs. 5 and 6 (not shown). The container may be provided with a liner or bladder of flexible material for the transport of fluid.
Patent GB-1098045-A (GB)
Title: Preparation of ditins
IPC: C07F7/22
Filed: 1965-11-26
Abstract: Organoditins of the formula R1R2R3SnSn R4R5R6 are prepared by heating (1) a compound or compounds of the formulae R1R2R3 SnCl and R4R5R6SnCl; and (2) sodium in a tetrahydrocarbon tin compound of the formula R7R8R9R10Sn as solvent.  R1 to R10 which may be the same or different are alkyl, aralkyl, alkaryl or aryl, with the proviso that not more than three of R1 to R6 are aryl or alkaryl. There may be at least 0.5 mole of solvent per mol. of reactant (1).  The Na may be in a 10-30% molar excess and dispersed in the solvent.  The reaction temperature may be 80-150 DEG  C. and the reaction pressure may be atmospheric.  Reactant (1) and the solvent may be obtained by reacting SnCl4 with an excess of tetrahydrocarbon tin compound.  The products may be used as pesticides.
Patent GB-1241548-A (GB)
Title: Improvements in and relating to control mechanisms
Inventor: ROBSON NORMAN
IPC: G05G5/24
Filed: 1967-11-08
Abstract: 1,241,548. Bowden mechanisms. N. ROBSON. 22 Oct., 1968 [8 Nov., 1967], No. 50802/67. Heading B7E. [Also in Division E2] A control mechanism comprises an inner member having longitudinally spaced recesses, location means engageable in any one of the recesses, an outer member having a first bore for the inner member, a second bore terminating at its inner end in the first bore, for accommodating the locating means, and a resilient band or clip attached about the outer member and extending across the outer end of the second bore to bias the locating means into engagement with the inner member, the arrangement being such that in operation, relative longitudinal movement of the inner member in the first bore allows the locating means to resiliently engage each recess in turn to provide positive location of the inner member at intervals along the locus of the relative longitudinal movement. As shown in Fig. 1, in a carburetter choke control mechanism, an operating rod 13, to which a choke cable 17 is attached, is slidable in a part 4 of a body 1 against a spring-loaded ball 18 which is biased into engagement with a part of the rod 13 having peripheral grooves 15, whereby to provide a positive step-by-step location of the rod 13. In another arrangement, Figs. 3 and 4, the bore 10 for the ball 18 extends circumferentially of a body part 3 and the grooves 15 are replaced by a channel 20 and the rod 13 having recesses such that the base extends longitudinally in the form of a sinusoidal curve. A locking ring 21 is provided about the body part 3 and is apertured at 22 for the ball 18 which is resiliently retained by a clip 19<SP>1</SP>. The arrangement provides for positive locking of the rod 13 by twisting the rod 13 to cause the ball 18 to be shafted into the circumferential part of the bore 10 and to be wedged between the ring 21 and recessed part of the rod 13. In a further arrangement, Figs. 5 and 6 (not shown), in which the rod (13) is grooved as in Fig. 1, a rotatable sleeve (23) is interposed between the rod (13) and portions (2) and (3) of the body (1) whereby upon rotation of the sleeve, the ball (18) is carried into a circumferential extension of the bore (10) and is wedged between a groove (15) and the inner surface of a locking ring (21), to prevent longitudinal movement of the rod (13) In all arrangements, the ball 18 may be replaced by a roller.
Patent GB-1491206-A (GB)
Title: Catalyst bodies
IPC: B21D13/10
Filed: 1973-11-08
Abstract: 1491206 Catalytic element for I.C. exhaust conversion UNITED KINGDOM ATOMIC ENERGY AUTHORITY 25 Oct 1974 [8 Nov 1973] 51974/73 Heading B1F [Also in Division B3] A catalyst body comprises a single strip, at least a surface of which comprises a catalyst material and which has been folded onto itself so that a plain region 5 is laid onto a region of protrusions 2 and then wound into a coil. The strip may be perforated and may be made of a catalyst material or coated with a catalyst e.g. oxidised aluminium bearing ferritic steel coated with platinum or palladium. The region of protrusions 2 may be in the form of ridges, bumps, tabs, dimples or corrugations produced by rolls, the corrugations extending transversely or longitudinally of the strip. The body is used for purifying exhaust gases of an internal combustion engine.
Patent GB-1309275-A (GB)
Title: Synthesis of urea from melamine synthesis waste gas
IPC: C07C239/00
Filed: 1970-11-02
Abstract: 1309275 Urea; melamine NISSAN CHEMICAL INDUSTRIES Ltd 2 Nov 1970 [1 Nov 1969] 51987/70 Heading C2C Urea is synthesized from a gaseous byproduct of the synthesis of melamine from ammonia and urea or a thermal decomposition product thereof, in a process comprising: (a) separating the gaseous by-product from the melamine synthesis solution at substantially the same pressure as the melamine synthesis pressure, (b) synthesizing urea at substantially the melamine synthesis pressure, (c) removing any excess ammonia from the product of the urea synthesis, and (d) introducing the product of the urea synthesis into an ammoniumcarbamate decomposition stage of a higher pressure second urea synthesis process. The excess ammonia removed from the product of the urea synthesis may be recycled to the melamine synthesis.
Patent GB-1383509-A (GB)
Title: Point of origin document processor
IPC: G06K17/00
Filed: 1971-11-09
Abstract: 1383509 Document reader DOCUMENTOR SCIENCES CORP 9 Nov 1971 [9 Nov 1970] 52030/71 Heading G4M [Also in Divisions H3 and H2] A reader for a document carrying laterally spaced data channels and a clock track has an optical read head 50, a belt transport system 14 and a printer 24.  The read head (Fig. 6) has light guides carrying light from a source to each of the data channels and to the clock track, has guides carrying reflected light to a photoelectric reader and has a guide 53 feeding a photo-cell and a transistor circuit (Fig. 7, not shown) arranged to overcome the effects of aging and dirt to maintain constant light intensity. The presence of a document is detected and causes drive to be applied to drive wheel 104 (Fig. 2) contacting the inner surface of a belt 105 passing over rollers 101. The document is passed between belts 105 and a belt 106 passing over rollers 102 and is fed to guides 100 and to the printing station 24 where the presence of the document is detected by optical detector 23 which also reads the timing track. A braking circuit (Fig. 5, or Fig. 11, not shown) is then operated by ceasing forward driving of wheel 105 and applying reverse driving for a short period, the wheel being connectable to either a forward driving or reverse driving motor, the latter allowing rejection of faulty documents. The rollers 101, 102 are crowned to correctly guide the documents (Fig. 4,.not shown). Several readers may be used feeding, via suitable interface units, a data processor such as a digital computer, data fed to the processor being held in a magnetic core store.
Patent GB-1490705-A (GB)
Title: Method and apparatus for engine control using a digital computer
IPC: F02D45/00
Filed: 1974-12-04
Abstract: 1490705 Control of IC engine fuel supply, spark ignition and exhaust recirculation FORD MOTOR CO Ltd 4 Dec 1974 [12 Dec 1973] 52353/74 Heading F1B [Also in Division G3] A digital computer is used to control an internal combustion engine by repeatedly calculating a value of first and second control variables from sensed operating parameter(s) in accordance with a stored function relating the respective operating parameter and variables. The spark ignition, fuel injection engine control system described responds to the sending of at least one of manifold pressure (load), throttle position, engine temperature or engine speed to control two of the variables chosen from the quantity of fuel injected, ignition timing and quantity of exhaust gas recirculated. The operating parameters are sensed in analog form and pass through multi-plexer 104 to A/D converter 136 for application to the digital computer. An electromagnetic pick-off 164 co-operating with slotted wheel 166 provides angular position pulses which are used to provide a time base for the computer arrangement. The clock oscillator 152 produces high frequency pulses which are used with the time base signals to divide the crank-shaft rotation into units of 0.351 degrees so that circuit 148 can adjust the ignition timing in response to engine operating conditions. A further electromagnetic pick-off 192 is housed in distributor 84 and provides pulses PT related to one particular piston position and are used in the fuel injection control circuit 138 to ensure that injection occurs at the correct instant; the duration of the injection being determined by the computer. The Specification discloses the programme for the sequence of operations in the computer and also describes the logic circuits used in the output stages. The repetition is preferably arranged to occur regularly and the algebraic functions in the computer may be composed of a plurality of linear functions.
Patent GB-1382415-A (GB)
Title: Ground working or cultivating implements
IPC: A01B13/08
Filed: 1970-11-04
Abstract: 1382415 Ground working or cultivating implements; tractor hitches G M BYRD and G J BYRD 2 Feb 1972 [4 Nov 1970] 52358/70 Headings A1B and A1P A ground working implement of the type comprising a frame 10 having three linkage points 18, 18, 20 designed to be connected to a three point linkage of a tractor, the frame being arranged to support a number of earth working tools and also having ground engaging wheels 15 for use in determining the height of the implement while work is in progress is characterized in that each tool comprises a blade 30 to the lower end of which is attached an interchangeable or replaceable mounting bracket 35 carrying a tool point 37. As shown a separate replaceable wear bar 38 capable of rotary adjustment or being reversed end for end is provided. Alternatively, Fig. 6 (not shown) a tool point with an inclined upper part (43) may be provided. The blades 30 are connected by shear bolts 34 or like safety release fittings to frame 10. The upper linkage point 20 is positioned somewhat in front of the lower linkage points 18, 18 and preferably at a substantial height of 24" or more above the lower points.